NTNP. Pregnancy test?

I'm irregular. I don't know when to expect my period. I don't know when I ovulate.

So I don't know when to test.

Most resources say '2 weeks after the last time you had unprotected sex' but we don't go more than 5-6 days without having sex so that's obviously not going to work. Glow says this week is my fertile week but I don't think so. We had sex 5 days this week anyway.

What do you think?